Engine Performance problem
1998 Dodge Neon 4 cyl Front Wheel Drive Automatic 105, 00 miles
NOT KIDDING - NO CRAZY
Changed timing belt recently. Cleaned computer plugs, cam shaft sensor plugs, New spark plugs, New air filter.
Car runs great after a somewhat sluggish start.
Millage varies from 39.1 mpg (best) to 30 mpg last week, 21 mpg today. May be back up to 35 gpm next week. I am not making jack rabbit starts during these test.
''CHECK ENGINE LIGHT on at times and back off.
I have change 02 sensor (spliced wires - oily) Even unhooked the sensor, the CEL may not even come on. It seems as if the o2 sensor is not even recognized at times.
Remember the fuel millage DOES VARRY under same conditions. NOT THE FUEL GAGE. If it would get poor and stay, then make sense. But the 39.1 mpg came after weeks or months of 20-25 mpg.
How can I find problem? Would ScanII help me diagnose a sensor as I drive?
MAYBE I AM CRAZY. LOL
have the same problem?
Thursday, September 24th, 2009 AT 8:56 PM